CN218332042U - Optical assembly - Google Patents
Optical assembly Download PDFInfo
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- CN218332042U CN218332042U CN202123170743.8U CN202123170743U CN218332042U CN 218332042 U CN218332042 U CN 218332042U CN 202123170743 U CN202123170743 U CN 202123170743U CN 218332042 U CN218332042 U CN 218332042U
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Abstract
The utility model provides an optical assembly, this optical assembly can increase the commonality of optical coupling wavelength division solution between different communication schemes. In order to achieve the above object, the present invention provides an optical assembly, including: the adjusting piece is provided with limiting structures which can limit the space between two adjacent fiber cores, and the space between the fiber cores corresponding to the limiting structures at the two ends of the adjusting piece is different; the optical fiber array comprises a plurality of fiber cores, the fiber cores are assembled on the adjusting piece and limited by the limiting structure, so that the distance between two adjacent fiber cores at the first end of the adjusting piece is a first distance, the distance between two adjacent fiber cores at the second end of the adjusting piece is a second distance, and the first distance is different from the second distance.
Description
Technical Field
The utility model relates to an optic fibre field especially relates to an optical assembly.
Background
Optical communication plays an extremely important role in the present communication link. Conventional twisted pair, coaxial wire, results in high losses as the cabling is extended and requires intermediate amplified power requirements. Moreover, the bandwidth of the conventional twisted pair and coaxial line cannot meet the demand of faster and faster communication. For this reason, optical fiber transmission is becoming increasingly important.
In the prior art, optical fibers are used in a variety of different communication schemes, including PSM4, CWDM4, LWDM4, etc., and a variety of optically coupled wavelength division solutions are used that are difficult to use universally between the various communication schemes.
Disclosure of Invention
An object of the utility model is to improve exist not enough among the prior art, provide an optical assembly, this optical assembly can increase the commonality of optical coupling wavelength division solution between different communication schemes.
In order to achieve the above object, the present invention provides an optical assembly, comprising:
the adjusting piece is provided with limiting structures which can limit the space between two adjacent fiber cores, and the space between the fiber cores corresponding to the limiting structures at the two ends of the adjusting piece is different;
the optical fiber array comprises a plurality of fiber cores, the fiber cores are assembled on the adjusting piece and limited by the limiting structure, so that the distance between two adjacent fiber cores at the first end of the adjusting piece is a first distance, the distance between two adjacent fiber cores at the second end of the adjusting piece is a second distance, and the first distance is different from the second distance.
Optionally, the adjusting member includes a third substrate, and a third V-shaped groove is formed in the third substrate, and the fiber cores are placed in the third V-shaped groove, so that the positions of the fiber cores are limited, and the distance between two adjacent fiber cores is adjusted;
the figure in third V type groove with the figure of fibre core equals, and adjacent two the third V type groove is in the interval of the first end on the third V type groove length direction is first interval, and adjacent two the third V type groove is in the interval of the second end on the V type groove length direction is the second interval.
Optionally, the adjusting member further includes a third cover plate, and the third cover plate is detachably disposed on the surface of the third substrate and covers the third V-shaped groove.
Optionally, the method further includes:
the first substrate is arranged at the first end of the adjusting piece and provided with first V-shaped grooves for placing each fiber core in the optical fiber array, the number of the first V-shaped grooves is the same as that of the fiber cores in the optical fiber array, and the distance between every two adjacent first V-shaped grooves is the first distance;
the second base plate is arranged at the second end of the adjusting piece, the second base plate is provided with second V-shaped grooves for placing each fiber core in the optical fiber array, the number of the second V-shaped grooves is equal to that of the fiber cores in the optical fiber array, and the distance between every two adjacent second V-shaped grooves is the second distance.
Optionally, the first substrate, the second substrate and the third substrate are connected in sequence through detachable connection structures, the first V-shaped groove, the second V-shaped groove and the third V-shaped groove are located on the same plane, and the detachable connection structures comprise at least one of tenon-and-mortise structures and screw structures.
Optionally, the optical add/drop module further includes a first add/drop device and a second add/drop device, where an optical signal input/output interface of the first add/drop device is in one-to-one correspondence with the first V-shaped groove on the first substrate, and an optical signal input/output interface of the second add/drop device is in one-to-one correspondence with the second V-shaped groove on the second substrate.
Optionally, the first V-shaped groove is disposed on the surface of the first substrate, the second V-shaped groove is disposed on the surface of the second substrate, and the optical assembly further includes:
the first cover plate is detachably arranged on the surface of the first substrate and covers the first V-shaped groove;
and the second cover plate is detachably arranged on the surface of the second substrate and covers the upper part of the second V-shaped groove.
Optionally, the first pitch is 100 to 500 microns, and the second pitch is 500 to 1000 microns.
Optionally, the method further includes:
the first wave combining/splitting device is arranged at the first end of the adjusting piece and used for being in one-to-one coupling connection with the fiber cores in the first optical fiber array, and the distance between two adjacent fiber cores in the first optical fiber array is a first distance;
and the first wave combining/splitting device is arranged at the second end of the adjusting part and used for being in one-to-one coupling connection with the fiber cores in the second optical fiber array, and the distance between two adjacent fiber cores in the second optical fiber array is a second distance.
Optionally, the first multiplexer/demultiplexer device includes an AWG chip, and the second multiplexer/demultiplexer device includes a Z-blcok device.
The utility model discloses a fiber core interval at adjustment optical fiber array both ends is adjusted to the adjusting part, makes the light array both ends can be connected to the different ripples of combining/dividing device respectively to in using the communication scheme of difference with same group light array.
Drawings
Fig. 1 is a schematic structural diagram of an optical assembly according to an embodiment of the present application.
Fig. 2 is a side view of an adjusting member of an optical assembly according to an embodiment of the present disclosure.
Fig. 3 is a schematic structural diagram of an optical assembly according to an embodiment of the present application.
Detailed Description
The following describes the optical assembly in detail with reference to the attached drawings.
Fig. 1 is a schematic structural diagram of an optical assembly according to an embodiment of the present application.
In this embodiment, the optical assembly includes: the adjusting piece 101 is provided with limiting structures which can limit the distance between two adjacent fiber cores, and the distances between the fiber cores corresponding to the limiting structures at two ends of the adjusting piece 101 are different; fiber array, including many fibre cores, just many fibre cores assemble on the adjusting part 101, by limit structure is spacing, makes the interval of two adjacent fibre cores of the first end of adjusting part 101 is first interval pitch1, the interval of two adjacent fibre cores of the second end of adjusting part 101 is second interval pitch2, and first interval pitch1 is not equal with second interval pitch2.
In this embodiment, the fiber array, which is one of the important components of a planar lightwave circuit Splitter (PLC Splitter), has a precisely ground endface, which can greatly reduce the loss of optical waveguide devices and optical coupling alignment.
The fiber core spacing at the two ends of the optical fiber array is adjusted by the adjusting piece 101, so that the two ends of the optical fiber array can be respectively connected to different wave combining/splitting devices, the same group of optical fiber array can be applied to different communication schemes, the optical component can be applied to various communication schemes, and the universality of the optical component is improved.
Since the adjusting member 101 is used to adjust the spacing between the two ends of the light array, two optical fiber arrays, namely a first optical fiber array with a first spacing pitch1 and a second optical fiber array with a second spacing pitch2, can be formed at the two ends of the adjusting member 101. The two fiber arrays have different core pitches but the same number of cores.
In one embodiment, the adjusting member 101 includes a third substrate, where a third V-shaped groove 1011 is disposed on the third substrate, and the cores are placed in the third V-shaped groove 1011, so as to limit the positions of the cores, and adjust the distance between two adjacent cores; the figure of third V type groove 1011 with the figure of fibre core equals, and adjacent two third V type groove 1011 is in the interval of the first end on the third V type groove 1011 length direction is first interval pitch1, adjacent two third V type groove 1011 is in the interval of the second end on the V type groove length direction is second interval pitch2.
The specific topography of the third V-groove 1011 is shown in fig. 2. By adopting the third substrate, the distance between two adjacent fiber cores is adjusted through the distance between two adjacent third V-shaped grooves 1011, so that the complexity of adjusting the distance between two adjacent paths of light paths in an optical mode is reduced, and the difficulty of respectively applying two ends of the optical fiber array to different communication systems is simplified.
In some embodiments, the third V-groove 1011 is made by a high-precision method, and is a high-precision V-groove, the positioning error is within 0.01mm, and the precision is high enough to accurately define the position of each Fiber core in the optical Fiber Array (Fiber Array), and ensure that the distance between two adjacent Fiber cores is known and fixed.
In some embodiments, the length of the third V-groove 1011 is at least 2mm, so as to prevent the core from being largely deformed in the third V-groove 1011 and affecting the transmission of the optical signal in the third V-groove 1011.
Moreover, in order to prevent the fiber core placed in the third V-shaped groove 1011 from being damaged by an external force during use, in some embodiments, the adjusting member 101 further includes a third cover plate detachably disposed on a surface of the third substrate and covering the third V-shaped groove 1011, so as to protect the fiber core placed in the third V-shaped groove 1011.
In some embodiments, the optical assembly further comprises: the first substrate 102 is arranged at a first end of the adjusting member 101, the first substrate 102 is provided with first V-shaped grooves 1021 for placing each fiber core in the optical fiber array, the number of the first V-shaped grooves 1021 is the same as that of the fiber cores in the optical fiber array, and the distance between every two adjacent first V-shaped grooves 1021 is the first distance pitch1; the second substrate 103 is disposed at the second end of the adjusting member 101, and the second substrate 103 is provided with a second V-shaped groove 1031 for placing each fiber core in the optical fiber array, the number of the second V-shaped grooves 1031 is the same as the number of the fiber cores in the optical fiber array, and the distance between the two adjacent second V-shaped grooves 1031 is the second distance pitch2.
By arranging the first substrate 102 and the second substrate 103 which are detachable, the first substrate 102 and the second substrate 103 can be easily loaded on different carriers, and the optical assembly can be detached for use by matching with the use of the adjusting member 101, so that the optical assembly is convenient to maintain.
The first substrate 102 and the second substrate 103 are disposed to help form a fixed-pitch optical fiber array at the first end and the second end of the adjusting member 101 for further coupling with some wavelength multiplexing/demultiplexing devices, thereby forming a stable communication system.
In some embodiments, the first substrate 102, the second substrate 103, and the third substrate are sequentially connected through a detachable connection structure, and the first V-shaped groove 1021, the second V-shaped groove 1031, and the third V-shaped groove 1011 are located on the same plane, where the detachable connection structure includes at least one of a mortise and tenon joint structure and a screw structure.
In some embodiments, the first V-groove 1021 is disposed on the surface of the first substrate 102, the second V-groove 1031 is disposed on the surface of the second substrate 103, and in order to prevent the cores disposed in the first V-groove 1021 and the second V-groove 1031 from being damaged by external force during use, the optical assembly further includes: the first cover plate is detachably arranged on the surface of the first substrate 102 and covers the upper part of the first V-shaped groove 1021; and the second cover plate is detachably arranged on the surface of the second substrate 103 and covers the second V-shaped groove 1031.
The fiber cores placed in the first V-shaped groove 1021 and the second V-shaped groove 1031 can be well protected by the first cover plate and the second cover plate, and the service life of the optical fiber array is prolonged.
The first cover plate and the second cover plate can play a role of protecting the fiber core.
In some embodiments, the first pitch1 is 100 to 500 microns and the second pitch2 is 500 to 1000 microns, both ranges being sufficient to accommodate communication systems known in the art. Actually, the first pitch1 and the second pitch2 may be set as needed. In a typical communication system, the core spacing of a compatible fiber array includes 250um/500um/750um.
In some embodiments, the optical device further comprises; the first wave/wave multiplexer/demultiplexer 201 is arranged at the first end of the adjusting member 101, and is used for performing coupling connection with the fiber cores in the first optical fiber array in a one-to-one correspondence manner, and the distance between two adjacent fiber cores in the first optical fiber array is a first distance pitch1; and the first wave combining/splitting device 201 is arranged at the second end of the adjusting part 101 and used for being in coupling connection with the fiber cores in the second optical fiber array in a one-to-one correspondence manner, and the distance between two adjacent fiber cores in the second optical fiber array is the second distance pitch2.
In some embodiments, the first multiplexer/demultiplexer device 201 comprises an AWG chip. AWG (Arrayed Waveguide Grating) is the first technology in Dense Wavelength Division Multiplexing (DWDM), and includes a group of gratings formed by Arrayed waveguides with equal length difference, and the gratings have the ability of Wavelength Division. The fiber core interval of the AWG chip is 250 microns, and the first interval pitch1 is met.
In some embodiments, the second multiplexer/demultiplexer device 202 comprises a Z-blcok device. The Z-block device is a micro-optical precision component, can realize the wavelength combination and division of 4 paths of wavelengths, has the size of only 1.5 multiplied by 1.0 multiplied by 1.35 mm, and is suitable for being used in CFP4 and QSFP modules. The Z-blcok device is adapted to have a core pitch of 750 microns, which conforms to the second pitch2.
In some embodiments, the Z-blcok device is a Z-blcok WDM (wavelet Division Multiplexing) device.
In fact, the specific structure of the multiplexer/demultiplexer device can be set according to the needs, and the two devices mentioned above are not limited.
In an embodiment where the first substrate 102 and the second substrate 103 are disposed, the optical signal input/output interface of the first multiplexer/demultiplexer 201 is disposed in a one-to-one correspondence with the first V-shaped groove 1021 on the first substrate 102, and the optical signal input/output interface of the second multiplexer/demultiplexer 202 is disposed in a one-to-one correspondence with the second V-shaped groove 1031 on the second substrate 103, so that after an optical fiber array with a fixed distance is formed at the first end and the second end of the adjusting member 101, the coupling connection between the multiplexer/demultiplexer and the optical fiber array is performed, which is favorable for forming a stable communication system. In fact, as shown in fig. 2, the first multiplexer/demultiplexer 201 and the second multiplexer/demultiplexer 202 may be directly coupled to the two ends of the adjusting member 101 without the aid of the first substrate 102 and the second substrate 103.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An optical assembly, comprising:
the adjusting piece is provided with a limiting structure which can limit the distance between two adjacent fiber cores, and the distances between the fiber cores corresponding to the limiting structures at the two ends of the adjusting piece are different;
the optical fiber array comprises a plurality of fiber cores, the fiber cores are assembled on the adjusting piece and limited by the limiting structure, so that the distance between two adjacent fiber cores at the first end of the adjusting piece is a first distance, the distance between two adjacent fiber cores at the second end of the adjusting piece is a second distance, and the first distance is different from the second distance.
2. The optical assembly of claim 1, wherein the adjusting member comprises a third substrate, and a third V-groove is disposed on the third substrate, and the fiber cores are disposed in the third V-groove, so as to limit the positions of the fiber cores and adjust the spacing between two adjacent fiber cores;
the figure in third V type groove with the figure of fibre core equals, and adjacent two the third V type groove is in the interval of the first end on the third V type groove length direction is first interval, and adjacent two the third V type groove is in the interval of the second end on the V type groove length direction is the second interval.
3. The optical assembly of claim 2, wherein the adjusting member further comprises a third cover plate detachably disposed on the surface of the third substrate and covering the third V-groove.
4. The optical assembly of claim 2, further comprising:
the first substrate is arranged at the first end of the adjusting piece and provided with first V-shaped grooves for placing all fiber cores in the optical fiber array, the number of the first V-shaped grooves is the same as that of the fiber cores in the optical fiber array, and the distance between every two adjacent first V-shaped grooves is the first distance;
the second base plate is arranged at the second end of the adjusting piece, the second base plate is provided with second V-shaped grooves for placing each fiber core in the optical fiber array, the number of the second V-shaped grooves is equal to that of the fiber cores in the optical fiber array, and the distance between every two adjacent second V-shaped grooves is the second distance.
5. The optical assembly according to claim 4, wherein the first substrate, the second substrate and the third substrate are sequentially connected through a detachable connection structure, the first V-shaped groove, the second V-shaped groove and the third V-shaped groove are located on the same plane, and the detachable connection structure comprises at least one of a mortise and tenon joint structure and a screw structure.
6. The optical assembly according to claim 4, further comprising a first multiplexer/demultiplexer and a second multiplexer/demultiplexer, wherein the optical signal input/output interfaces of the first multiplexer/demultiplexer are disposed in one-to-one correspondence with the first V-grooves on the first substrate, and the optical signal input/output interfaces of the second multiplexer/demultiplexer are disposed in one-to-one correspondence with the second V-grooves on the second substrate.
7. The optical assembly of claim 4, wherein the first V-groove is disposed on the first substrate surface and the second V-groove is disposed on the second substrate surface, the optical assembly further comprising:
the first cover plate is detachably arranged on the surface of the first substrate and covers the upper part of the first V-shaped groove,
and the second cover plate is detachably arranged on the surface of the second substrate and covers the upper part of the second V-shaped groove.
8. The optical assembly of claim 1, wherein the first pitch is 100 to 500 microns and the second pitch is 500 to 1000 microns.
9. The optical assembly of claim 1, further comprising:
the first wave combining/splitting device is arranged at the first end of the adjusting piece and used for being in one-to-one coupling connection with the fiber cores in the first optical fiber array, and the distance between two adjacent fiber cores in the first optical fiber array is a first distance;
and the second wave combining/splitting device is arranged at the second end of the adjusting part and used for being in one-to-one coupling connection with the fiber cores in the second optical fiber array, and the distance between two adjacent fiber cores in the second optical fiber array is a second distance.
10. The optical assembly of claim 9 wherein the first multiplexer/demultiplexer device comprises an AWG chip and the second multiplexer/demultiplexer device comprises a Z-blcok device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123170743.8U CN218332042U (en) | 2021-12-17 | 2021-12-17 | Optical assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123170743.8U CN218332042U (en) | 2021-12-17 | 2021-12-17 | Optical assembly |
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|---|---|
| CN218332042U true CN218332042U (en) | 2023-01-17 |
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| CN202123170743.8U Active CN218332042U (en) | 2021-12-17 | 2021-12-17 | Optical assembly |
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- 2021-12-17 CN CN202123170743.8U patent/CN218332042U/en active Active
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